import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken, setToken } from '@/utils/auth'

export function getBaseUrl() {
    switch (process.env.VUE_APP_BASE_API) {
        case '/prod-api':
            return '' //生产环境url
        default:
            return process.env.VUE_APP_BASE_API
    }
}
// create an axios instance
const service = axios.create({
    baseURL: getBaseUrl(), // url = base url + request url
    // withCredentials: true, // send cookies when cross-domain requests
    timeout: 30000 // request timeout
})

// request interceptor
service.interceptors.request.use(
    config => {
        // do something before request is sent

        if (store.getters.token) {
            // let each request carry token
            // ['X-Token'] is a custom headers key
            // please modify it according to the actual situation
            config.headers['token'] = getToken()
        }
        console.log(config.url)
        if (config.params) {
            console.log(config.params)
        } else if (config.data) {
            console.log(config.data)
        }
        return config
    },
    error => {
        // do something with request error
        console.log(error) // for debug
        return Promise.reject(error)
    }
)

// response interceptor
service.interceptors.response.use(
    /**
     * If you want to get http information such as headers or status
     * Please return  response => response
     */

    /**
     * Determine the request status by custom code
     * Here is just an example
     * You can also judge the status by HTTP Status Code
     */
    response => {
        const res = response.data
        console.log(res)
        if (response.headers.token && response.headers.token != getToken()) {
            setToken(response.headers.token)
        }
        if (!res.code && (res instanceof Blob)) {
            if (res.type === 'application/json') {
                return res
            } else {
                /**
                 * 下载文件
                 */
                const obj = {
                    headers: response.headers,
                    blob: res
                }
                return obj
            }
        }
        const { code } = res
        store.dispatch('permission/setRequestCode', code)
            // if the custom code is not 20000, it is judged as an error.
        if (res.code !== 200) {
            if (res.code !== 302) { //302代表着没有权限，请到 App.vue中处理
                Message({
                    message: res.message || 'Error',
                    type: 'error',
                    duration: 5 * 1000
                })
            }

            // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
            if (res.code === 50008 || res.code === 50012 || res.code === 50014) {
                // to re-login
                MessageBox.confirm(res.message, '确定退出', {
                    confirmButtonText: '重新登录',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).then(() => {
                    store.dispatch('user/resetToken').then(() => {
                        location.reload()
                    })
                })
            }
            return Promise.reject(res)
        } else {
            return res
        }
    },
    error => {
        console.log('err' + error) // for debug
        Message({
            message: error.message,
            type: 'error',
            duration: 5 * 1000
        })
        return Promise.reject(error)
    }
)

export default service